# You Deserved It!

#1

I was able to follow the instructions and pass the test but there's one thing I don't understand. How does it understand that "employee" refers to StaffMember? Who can help me figure this out? Thanks!

``````function StaffMember(name,discountPercent){
this.name = name;
this.discountPercent = discountPercent;
}

var sally = new StaffMember("Sally",5);
var bob = new StaffMember("Bob",10);

// Create yourself again as 'me' with a staff discount of 20%
var me = new StaffMember("Marloes",20);

var cashRegister = {
total:0,
lastTransactionAmount: 0,
this.total += (itemCost || 0);
this.lastTransactionAmount = itemCost;
},
scan: function(item,quantity){
switch (item){
case "eggs": this.add(0.98 * quantity); break;
case "milk": this.add(1.23 * quantity); break;
case "magazine": this.add(4.99 * quantity); break;
case "chocolate": this.add(0.45 * quantity); break;
}
return true;
},
voidLastTransaction : function(){
this.total -= this.lastTransactionAmount;
this.lastTransactionAmount = 0;
},
// Create a new method applyStaffDiscount here

applyStaffDiscount: function(employee){
this.total -= this.total * (employee.discountPercent / 100);
}

};

cashRegister.scan('eggs',1);
cashRegister.scan('milk',1);
cashRegister.scan('magazine',3);
// Apply your staff discount by passing the 'me' object
// to applyStaffDiscount
cashRegister.applyStaffDiscount(me);

// Show the total bill

#2

Is it this that you're confused about?

You can use anything in the place of employee, but the object will be the variable used.
http://www.w3schools.com/js/js_function_parameters.asp

#3

Exactly, this is the part that confused me. So what you're saying I could also used another term instead of employee? Wouldn't it make more sense to use staffMember here?

#4

It's whatever you use to help you remember it. You could use `a` or `staff` or `shrek`, it doesn't matter.

#5

Ok, got it now. Thanks a million for helping me!